Identify the species that contains a conjugated system of π bonds. Ex

1.	Identify the species that contains a conjugated system of π bonds. Explain your answer, i. CH2 = CH – CH2 – CH = CH2 ii. CH2 = CH – CH = CH – CH3
Answer» i. It does not contain conjugated system of π bonds, as the two C = C double bonds are separated by two C – C single bonds. ii. It contains a conjugated system of π bonds, as the two C = C double bonds are separated by only one C – C single bond.

Identify the species that contains a conjugated system of π bonds. Explain your answer, i. CH2 = CH – CH2 – CH = CH2 ii. CH2 = CH – CH = CH – CH3

Answer»

i. It does not contain conjugated system of π bonds, as the two C = C double bonds are separated by two C – C single bonds.

ii. It contains a conjugated system of π bonds, as the two C = C double bonds are separated by only one C – C single bond.